The CPU Power panel displays CPU Power utilization statistics.

On the CPU Power panel, statistics are arranged per PCPU. A PCPU is a physical hardware execution context -- a physical CPU core if hyper-threading is unavailable or disabled, or a logical CPU (LCPU or SMT thread) if hyper-threading is enabled.

Table 1. CPU Power Panel Statistics

Line

Description

Power Usage

Current total power usage (in Watts).

Power Cap

Total power cap (in Watts).

PSTATE MHZ

Clock frequency per state.

%USED

Percentage of PCPU nominal frequency used since the last screen update. It is the same as PCPU USED(%) shown in the CPU Screen.

%UTIL

Raw PCPU utilization, that is the percentage of real time that PCPU was not idle. It is the same as PCPU UTIL(%) shown in the CPU Screen.

%Cx

Percentage of time the PCPU spent in C-State 'x'.

%Px

Percentage of time the PCPU spent in P-State 'x'. On systems with Processor Clocking Control, P-states are not directly visible to ESXi, so esxtop instead shows the percentage of time spent at full speed under the heading 'P0' and the percentage of time spent at any lower speed under 'P1'.

%Tx

Percentage of time the PCPU spent in T-State 'x'.